cf.Data.cos¶

Data.
cos
(inplace=False, i=False)[source]¶ Take the trigonometric cosine of the data elementwise.
Units are accounted for in the calculation. If the units are not equivalent to radians (such as Kelvin) then they are treated as if they were radians. For example, the cosine of 90 degrees_east is 0.0, as is the cosine of 1.57079632 kg m2.
The output units are changed to ‘1’ (nondimensional).
 Parameters
 Returns
Examples
>>> d.Units <Units: degrees_east> >>> print(d.array) [[90 0 90 ]] >>> e = d.cos() >>> e.Units <Units: 1> >>> print(e.array) [[0.0 1.0 0.0 ]]
>>> d.Units <Units: m s1> >>> print(d.array) [[1 2 3 ]] >>> d.cos(inplace=True) >>> d.Units <Units: 1> >>> print(d.array) [[0.540302305868 0.416146836547 0.9899924966 ]]